DIA 1 Study Guide

What is the definition of science?

• The study of living organisms

• The study of matter and energy

• The study of Earth's atmosphere

• The study of human behavior

What is a hypothesis?

• A proposed explanation based on evidence

• A scientific law

• A measurement of energy

• A type of data

What is the independent variable in an experiment?

• The variable that is measured

• The variable that is manipulated

• The variable that stays constant

• The variable that is observed

What is the control group used for in an experiment?

• To provide a baseline for comparison

• To manipulate the independent variable

• To collect qualitative data

• To measure the dependent variable

What is the difference between qualitative and quantitative data?

• Qualitative data is numerical, while quantitative data is descriptive

• Qualitative data is descriptive, while quantitative data is numerical

• Qualitative data is measured, while quantitative data is observed

• Qualitative data is observed, while quantitative data is measured

Can scientific evidence change over time? Why or why not?

• Yes, because new evidence can be discovered that contradicts previous findings

• No, because scientific evidence is always accurate and unchanging

• Yes, because scientists can manipulate evidence to fit their desired outcomes

• No, because scientific evidence is based on facts and cannot be altered

What is the difference between a scientific law and a scientific theory?

• A scientific law is proven and universally accepted, while a scientific theory is an educated guess

• A scientific law is based on observations and describes a phenomenon, while a scientific theory is a well-substantiated explanation

• A scientific law is temporary and subject to change, while a scientific theory is permanent and unchanging

• A scientific law is specific to a certain field of study, while a scientific theory applies to all scientific disciplines

What does the Law of Conservation of Energy say? Describe what it means in your own words.

• Energy cannot be created or destroyed, only transferred or transformed

• Energy can be created or destroyed, depending on the circumstances

• Energy is constantly changing and cannot be conserved

• Energy is only conserved in certain situations, but not in others

What is an example of thermal energy?

• A moving car

• A burning candle

• A falling apple

• A spinning top

Give an example of mechanical energy?

• A light bulb glowing

• A radio playing music

• A windmill turning

• A computer processing data